c# - tilde `~` use in Enum -

iv'e through answer.

can not seem understand line of code:

i'm trying many cultures can.

cultureinfo[] cinfo = cultureinfo.getcultures(culturetypes.allcultures & ~culturetypes.neutralcultures);  public enum culturetypes {     neutralcultures = 1,     specificcultures = 2,     installedwin32cultures = 4,     allcultures = 7,     usercustomculture = 8,     replacementcultures = 16,     [obsolete("this value has been deprecated.  please use other values in culturetypes.")]     windowsonlycultures = 32,     [obsolete("this value has been deprecated.  please use other values in culturetypes.")]     frameworkcultures = 64, } 

does tilde makes constructor behave this?:

cultureinfo[] cinfo = cultureinfo.getcultures(culturetypes.allcultures |  culturetypes.neutralcultures |  culturetypes.specificcultures |  culturetypes.installedwin32cultures |  culturetypes.usercustomculture |  culturetypes.replacementcultures ); 

this expression:

culturetypes.allcultures & ~culturetypes.neutralcultures 

is equivalent (in natural language) of: "allcultures except neutralcultures".

the bitwise complement operator ~ negate value of culturetypes.neutralcultures.

let's bitwise math manually:

allcultures            = 0111 // 1+2+4=7 neutralcultures        = 0001 // 1 specificcultures       = 0010 // 2 installedwin32cultures = 0100 // 4 

so:

~neutralcultures = 1110 // bits flipped 

and:

allcultures & ~neutralcultures = 0111 & 1110 

which results in:

0111 1110 ---- 0110 

0110 6 in decimal, equivalent specificcultures | installedwin32cultures